Specification
The microprocessor-controlled series AL20 of handheld meters from AQUALYTIC meets the day-to-day demands for sturdy and reliable systems for the measurement of pH value or ORP/ Redox, conductivity/ TDS and dissolved oxygen.
The water-tight housing complies with IP67 and is equipped as standard with protective armouring and built-in electrode holder ensuring reliable operation even in extreme ambient conditions.
The support can be flipped up to hang the meter on pipes or branches.
A direct, easily understood user interface, outlining the required configuration options for all three systems, facilitates meter operation both outdoors and in the laboratory.
The automatic Hold function “ freezes†stable measuring data in the display and indicates the presence of stable and reproducible results.
The internal memory allows storage of 20 data sets to facilitate subsequent evaluation.
The integral automatic switch-off feature, varying from 1 to 120 minutes, increases the operating life of the units. The power consumption of all three units has been reduced to a minimum. As a result, the 4 x 1.5 V integrated batteries have an operating life of up to 15000 hours, depending on the unit version.
AL20pH
pH / redox measurement and temperature measurement ( Pt1000 or NTC 30kOhm)
Automatic temperature compensation ( ATC)
Auto Hold function
Internal memory for 20 data sets
Automatic buffer recognition with Tintometer standard or DIN or individual buffer
1, 2 and 3 point calibration
Low battery and battery change indicator
Sensor evaluation in the display based on the calibration result ( from 10 to 100% )
Battery operation period up to 15000 hours
Shock-absorbing rubber protective armouring
Waterproof
AL20Con
Conductivity, Total Dissolved Solids ( TDS) , Salinity and Temperature measurement
Dirt-insensitive up-to-date 4-pole conductivity cell offering highest precision
Automatic temperature compensation ( ATC)
Min/ Max value storage
Internal memory for 20 data sets
Linear and non-linear temperature compensation ( EN27888)
Calibration against standard solutions
Low battery and battery change indicator
Shock-absorbing rubber protective armouring
Battery operation period up to 3000 hours
Waterproof
AL20Oxi
Oxygen partial pressure, Oxygen concentration, Oxygen saturation, Temperature measurement
Automatic absolute air pressure measurement
Auto Hold function
Easy calibration against oxygen in air
Salinity correction
Self-polarising galvanic oxygen probe, allows instant measurement after the system is switched on
Low battery and battery change indicator
Sensor evaluation in the display
Accessories for depth measurement
Battery operation period up to 12000 hours
Shock-absorbing rubber protective armouring
Waterproof
Electrodes / measuring probes
The wide variety of highquality electrodes and measuring probes for the series AL20 meters makes them suitable for almost any application in water analysis, industry and research. pH combination electrodes made of glass and plastic, with gel or liquid electrolyte, as well as various temperature sensors ( NTC 30kOhm, Pt1000) are considered standard for modern pH meters.
Redox electrodes made of plastic with gel electrolyte and platinum tip are hardwearing and easy to use. The galvanic, membrane-covered oxygen sensor with built-in temperature sensor allows instant measurement without the need for time-consuming polarisation.
The sturdy, dirt-insensitive 4-pole conductivity measuring cell with graphite electrodes is ideal for use in industrial process and waste water analysis. The temperature range from 0… 80° C, for a short period up to 100° C, make this sensor to a practice-oriented, user friendly item.
AL20pH
Technical Data
pH 0.00 ... 14, 00
Accuracy ± 0.01 pH ( at nominal
temperature, unit ± 1 digit)
Temperature -10.0 ... + 110.0° C / 14.0 ... 230.0° F
Accuracy ± 0.2° C ( -0..50° C) , otherwise ± 0.4° C
Redox ( ORP) -1999 ... + 2000 mV
Relative Redox -1792 ... + 2206 Rel mV ( based on DIN 38 404
Accuracy ± 0.1% FS ( mV or Rel mV)
Sensor connections DIN 19262 and two 4 mm banana, sockets " Temp†and " Refâ€
Input resistance > 1012 Ohm ( typ.)
Input current 15, 000h
Power consumption 0.2 mA
Auto-Off function 0 - 120 minutes
Calibration 1-, 2- or 3-point calibration with auto buffer recognition Tintometer buffer, DIN buffer or user-selectable buffer
CE-Conformity
AL20Con
Technical Data
Conductivity 0.0 ... 200.0 µ S/ cm
0 ... 2000 µ S/ cm
0.00 ... 20.00 mS/ cm
0.0 ... 200.0 mS/ cm
Resistance 0.005 ... 100.0 kOhm* cm
TDS 0 ... 1999 mg/ l
Salinity 0.0 ... 70.0 g/ kg
Accuracy ± 0.5 % FS ± 0.5 % FS ( ± 3 digits)
Temperature -5.0 ... 100.0° C / 23.0 ... 212° F
Accuracy ± 0.3K
Cell constant 0.50 ± 0.10 cm-1
Temperature compensation selectable:
- linear , 0.3 to 3.0% / K
- non-linear in acc. with EN 27 888
- no compensation
Reference temperature 20° C and 25° C
Calibration 1-point calibration in the range
from 1000 to 2000 µ S/ cm
Nominal temperature 25° C
Operating temperature Unit: 0 to + 50° C
Measuring cell: -5 to 80° C
( up to 100° C for short periods)
Power supply 4 x 1.5 V battery, Type AA
Operating time up to 1500 h
Power consumption ca. 2 mA, max. 4.2 mA
Auto-Off function 0 - 120 minutes
Measuring cell 4-pole conductivity measuring cell with integrated temperature- sensor ( NTC10kOhm) . Electrode material: special graphite Shaft material: epoxy, Temperature sensor: stainless steel, Dimensions: diameter 12 mm, 120 mm long
CE-Conformity
AL20Oxi
Technical Data
O2 partial pressure 0.0...570.0 hPa, 0...1200 hPa, 0.0...427.5 mm Hg, 0...900 mm Hg
O2 concentration 0.00...25.00 mg/ L,
0.0...70.0 mg/ L
O2 saturation 0.0...250.0 % , 0...600 %
Accuracy ± 1.5% ± 0.2 mg/ L ( 0...25 mg/ L) , ± 2.5% ± 0.3 mg/ L ( 25...70 mg/ L) ± 1Digit
Temperature -5.0 ... + 50.0 ° C / 23.0 ... 122.0 ° F
Accuracy ± 0.1 ° C
Abs. air pressure 500..1100 hPa
Accuracy ± 0.5% full scale
Nominal temperature 25° C
Operating temperature 0 to + 50° C
Storage temperature -20 to + 70° C
Power supply 4 x 1.5 V battery, Type AA
Operating time up to 12.000 h
Power consumption max 0.25 mA
Auto-Off function 0 - 120 minutes
Dimensions 175 x 140 x 45 mm ( LxWxH)
Weight approx. 580 g
Electrode Self-polarising oxygen electrode with integrated NTC sensor
Connection: 7-pin DIN socket
Installation diameter: 12.0 ± 0.2 mm
Overall length: approx. 220 mm
( incl. kink protection)
Operating temperature: 0...40° C
CE-Conformity
Indomonster Priority